ACPICA 20050408 from Bob Moore

Fixed three cases in the interpreter where an "index"
argument to an ASL function was still (internally) 32
bits instead of the required 64 bits.  This was the Index
argument to the Index, Mid, and Match operators.

The "strupr" function is now permanently local
(acpi_ut_strupr), since this is not a POSIX-defined
function and not present in most kernel-level C
libraries. References to the C library strupr function
have been removed from the headers.

Completed the deployment of static
functions/prototypes. All prototypes with the static
attribute have been moved from the headers to the owning
C file.

ACPICA 20050329 from Bob Moore

An error is now generated if an attempt is made to create
a Buffer Field of length zero (A CreateField with a length
operand of zero.)

The interpreter now issues a warning whenever executable
code at the module level is detected during ACPI table
load. This will give some idea of the prevalence of this
type of code.

Implemented support for references to named objects (other
than control methods) within package objects.

Enhanced package object output for the debug
object. Package objects are now completely dumped, showing
all elements.

Enhanced miscellaneous object output for the debug
object. Any object can now be written to the debug object
(for example, a device object can be written, and the type
of the object will be displayed.)

The "static" qualifier has been added to all local
functions across the core subsystem.

The number of "long" lines (> 80 chars) within the source
has been significantly reduced, by about 1/3.

Cleaned up all header files to ensure that all CA/iASL
functions are prototyped (even static functions) and the
formatting is consistent.

Two new header files have been added, acopcode.h and
acnames.h.

Removed several obsolete functions that were no longer
used.

Signed-off-by: Len Brown <len.brown@intel.com>

1 files changed, 45 insertions, 25 deletions

diff --git a/drivers/acpi/executer/exnames.c b/drivers/acpi/executer/exnames.c
index 7911c533c265..639f0bd3f6d8 100644
--- a/drivers/acpi/executer/exnames.c
+++ b/drivers/acpi/executer/exnames.c
@@ -50,13 +50,17 @@
 #define _COMPONENT          ACPI_EXECUTER
          ACPI_MODULE_NAME    ("exnames")
 
+/* Local prototypes */
 
-/* AML Package Length encodings */
+static char *
+acpi_ex_allocate_name_string (
+        u32                             prefix_count,
+        u32                             num_name_segs);
 
-#define ACPI_AML_PACKAGE_TYPE1   0x40
-#define ACPI_AML_PACKAGE_TYPE2   0x4000
-#define ACPI_AML_PACKAGE_TYPE3   0x400000
-#define ACPI_AML_PACKAGE_TYPE4   0x40000000
+static acpi_status
+acpi_ex_name_segment (
+        u8                              **in_aml_address,
+        char                            *name_string);
 
 
 /*******************************************************************************
@@ -64,7 +68,7 @@
  * FUNCTION:    acpi_ex_allocate_name_string
  *
  * PARAMETERS:  prefix_count        - Count of parent levels. Special cases:
- *                                    (-1) = root,  0 = none
+ *                                    (-1)==root,  0==none
  *              num_name_segs       - count of 4-character name segments
  *
  * RETURN:      A pointer to the allocated string segment.  This segment must
@@ -75,7 +79,7 @@
  *
  ******************************************************************************/
 
-char *
+static char *
 acpi_ex_allocate_name_string (
         u32                             prefix_count,
         u32                             num_name_segs)
@@ -88,7 +92,7 @@ acpi_ex_allocate_name_string (
 
 
         /*
-         * Allow room for all \ and ^ prefixes, all segments, and a multi_name_prefix.
+         * Allow room for all \ and ^ prefixes, all segments and a multi_name_prefix.
          * Also, one byte for the null terminator.
          * This may actually be somewhat longer than needed.
          */
@@ -107,7 +111,8 @@ acpi_ex_allocate_name_string (
          */
         name_string = ACPI_MEM_ALLOCATE (size_needed);
         if (!name_string) {
-                ACPI_REPORT_ERROR (("ex_allocate_name_string: Could not allocate size %d\n", size_needed));
+                ACPI_REPORT_ERROR ((
+                        "ex_allocate_name_string: Could not allocate size %d\n", size_needed));
                 return_PTR (NULL);
         }
 
@@ -152,15 +157,17 @@ acpi_ex_allocate_name_string (
  *
  * FUNCTION:    acpi_ex_name_segment
  *
- * PARAMETERS:  interpreter_mode    - Current running mode (load1/Load2/Exec)
+ * PARAMETERS:  in_aml_address  - Pointer to the name in the AML code
+ *              name_string     - Where to return the name. The name is appended
+ *                                to any existing string to form a namepath
  *
  * RETURN:      Status
  *
- * DESCRIPTION: Execute a name segment (4 bytes)
+ * DESCRIPTION: Extract an ACPI name (4 bytes) from the AML byte stream
  *
  ******************************************************************************/
 
-acpi_status
+static acpi_status
 acpi_ex_name_segment (
         u8                              **in_aml_address,
         char                            *name_string)
@@ -223,10 +230,13 @@ acpi_ex_name_segment (
                 status = AE_CTRL_PENDING;
         }
         else {
-                /* Segment started with one or more valid characters, but fewer than 4 */
-
+                /*
+                 * Segment started with one or more valid characters, but fewer than
+                 * the required 4
+                 */
                 status = AE_AML_BAD_NAME;
-                ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "Bad character %02x in name, at %p\n",
+                ACPI_DEBUG_PRINT ((ACPI_DB_ERROR,
+                        "Bad character %02x in name, at %p\n",
                         *aml_address, aml_address));
         }
 
@@ -239,11 +249,16 @@ acpi_ex_name_segment (
  *
  * FUNCTION:    acpi_ex_get_name_string
  *
- * PARAMETERS:  data_type           - Data type to be associated with this name
+ * PARAMETERS:  data_type           - Object type to be associated with this
+ *                                    name
+ *              in_aml_address      - Pointer to the namestring in the AML code
+ *              out_name_string     - Where the namestring is returned
+ *              out_name_length     - Length of the returned string
  *
- * RETURN:      Status
+ * RETURN:      Status, namestring and length
  *
- * DESCRIPTION: Get a name, including any prefixes.
+ * DESCRIPTION: Extract a full namepath from the AML byte stream,
+ *              including any prefixes.
  *
  ******************************************************************************/
 
@@ -286,7 +301,8 @@ acpi_ex_get_name_string (
                 switch (*aml_address) {
                 case AML_ROOT_PREFIX:
 
-                        ACPI_DEBUG_PRINT ((ACPI_DB_LOAD, "root_prefix(\\) at %p\n", aml_address));
+                        ACPI_DEBUG_PRINT ((ACPI_DB_LOAD, "root_prefix(\\) at %p\n",
+                                aml_address));
 
                         /*
                          * Remember that we have a root_prefix --
@@ -303,7 +319,8 @@ acpi_ex_get_name_string (
                         /* Increment past possibly multiple parent prefixes */
 
                         do {
-                                ACPI_DEBUG_PRINT ((ACPI_DB_LOAD, "parent_prefix (^) at %p\n", aml_address));
+                                ACPI_DEBUG_PRINT ((ACPI_DB_LOAD, "parent_prefix (^) at %p\n",
+                                        aml_address));
 
                                 aml_address++;
                                 prefix_count++;
@@ -321,13 +338,13 @@ acpi_ex_get_name_string (
                         break;
                 }
 
-
                 /* Examine first character of name for name segment prefix operator */
 
                 switch (*aml_address) {
                 case AML_DUAL_NAME_PREFIX:
 
-                        ACPI_DEBUG_PRINT ((ACPI_DB_LOAD, "dual_name_prefix at %p\n", aml_address));
+                        ACPI_DEBUG_PRINT ((ACPI_DB_LOAD, "dual_name_prefix at %p\n",
+                                aml_address));
 
                         aml_address++;
                         name_string = acpi_ex_allocate_name_string (prefix_count, 2);
@@ -349,7 +366,8 @@ acpi_ex_get_name_string (
 
                 case AML_MULTI_NAME_PREFIX_OP:
 
-                        ACPI_DEBUG_PRINT ((ACPI_DB_LOAD, "multi_name_prefix at %p\n", aml_address));
+                        ACPI_DEBUG_PRINT ((ACPI_DB_LOAD, "multi_name_prefix at %p\n",
+                                aml_address));
 
                         /* Fetch count of segments remaining in name path */
 
@@ -368,7 +386,8 @@ acpi_ex_get_name_string (
                         has_prefix = TRUE;
 
                         while (num_segments &&
-                                        (status = acpi_ex_name_segment (&aml_address, name_string)) == AE_OK) {
+                                        (status = acpi_ex_name_segment (&aml_address, name_string)) ==
+                                                AE_OK) {
                                 num_segments--;
                         }
 
@@ -380,7 +399,8 @@ acpi_ex_get_name_string (
                         /* null_name valid as of 8-12-98 ASL/AML Grammar Update */
 
                         if (prefix_count == ACPI_UINT32_MAX) {
-                                ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, "name_seg is \"\\\" followed by NULL\n"));
+                                ACPI_DEBUG_PRINT ((ACPI_DB_EXEC,
+                                        "name_seg is \"\\\" followed by NULL\n"));
                         }
 
                         /* Consume the NULL byte */